Both modules are used to assess tasks involving awkward postures.

The Postures [OWAS] module analyzes more postures, but with fewer details than the Postures [RULA] module:

• Postures [OWAS] analyzes the risk of a random sampling of working postures, whereas Postures [RULA] analyzes the most frequent and/or arduous postures.

• InPostures [OWAS], each posture analyzed considers the position of the back, arms and legs, and the force exerted. Postures [RULA], analyzes for each posture the position of arms, forearms, wrists, trunk, neck and legs, force/load and muscle activity.